Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
FMMT491 是一种由 SHIKUES(时科)生产的高性能 NPN 双极晶体管(BJT),封装在紧凑的 SOT-23 包装中。这种三极管以其卓越的电气性能和广泛的应用场景而受到广泛欢迎,特别适用于需要高频率和高电流驱动能力的电子系统。
以下是 FMMT491 的一些关键参数:
功率(Pd): 500 mW
商品分类: 三极管(BJT)
晶体管类型: NPN
特征频率(fT): 100 MHz
直流电流增益(hFE@Ic,Vce): 200 @ 100 mA, 1 V
集射极击穿电压(Vceo): 60 V
集电极-发射极饱和电压(VCE(sat)@Ic,Ib): 500 mV @ 800 mA, 80 mA
集电极截止电流(Icbo): 100 nA
集电极电流(Ic): 1 A
FMMT491 因其优异的性能和紧凑的封装,适用于以下几个主要应用场景:
高频放大器:
开关电源:
数字逻辑门和驱动器:
音频设备:
汽车电子系统:
FMMT491 是一款功能强大且多功能的 NPN 三极管,通过其出色的电气性能和紧凑的封装,广泛应用于各种高频、高电流和高效率的电子系统中。无论是在射频放大、开关电源还是数字逻辑门等领域,FMMT491 都是一个值得考虑的选择。
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Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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